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Golang Automatic Reloads (alexedwards.net)
30 points by alexedwards 4651 days ago
5 comments
masklinn 4651 days ago
That's more of an automatic restart (kill and start the process again) than an automatic reload (update code within the running system). And surely there are non-go-specific tools which can already do that, aren't there?
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lpmay 4651 days ago
Yup, such tools exist. I've used peat before for stuff like this:

https://github.com/sjl/peat

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dinduks 4651 days ago
CEL is a similar and more generic script: it can do that for any program and works on Linux and Mac.

https://github.com/Dinduks/change-execute-loop

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Sirupsen 4651 days ago
SIGKILL seems a little aggressive for a controlled process restart.
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deafbybeheading 4651 days ago
Not to mention the program sigkills itself before it attempts to `exit 0`...
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alexedwards 4651 days ago
Genuine question - can a process kill itself?

The kill of go-reload was to make sure background processes get cleaned up, but I suspect one of the kill or exit in the close function is superfluous.

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justin66 4651 days ago
> Genuine question - can a process kill itself?

Sure. Send the signal, the signal handler - custom or default - handles it. This works whether the signal comes from another process or its own process.

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samnardoni 4651 days ago
Or rerun by skelterjohn http://github.com/skelterjohn/rerun
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rorrr2 4651 days ago
On Windows you can use something like this

http://www.nodesoft.com/foldermonitor

(freeware)

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mischanix 4651 days ago
Go also provides a syscall for ReadDirectoryChanges, and one really nice Go library that uses inotify/ReadDirectoryChanges is https://github.com/howeyc/fsnotify
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